Traffic coordination control system between crossings
A coordinated control system and intersection technology, which is applied in the field of traffic coordination control systems between intersections, and can solve problems such as inconvenient design, mutual influence of traffic flows, and complex curve models.
Inactive Publication Date: 2006-10-11
王大海
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However, the following deficiencies are also shown in the operation: ...the control mode of motor vehicles and non-motor vehicles is not perfect, and there are still a large number of phenomena of mutual influence of traffic flow, which limits the control effect..."
Obviously, these curve models are too complex and inconvenient to design, so it is not suitable to use
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[0073] Apparently, with the detailed description of the content of the inventive solution above, the technical solution of this patent application is not difficult to implement.
[0074] About realizing that this patent application involves various design techniques identical with all existing traffic signal coordinated control systems, it is not elaborated here, it is to design a kind of traffic signal coordinated control system of a plurality of crossings, by central computer and The clock is almost synchronized with each intersection signal control device. By inputting the fixed spatial geometric parameters such as the distance between each intersection, the number of roads in the road section, the length of the road surface in the intersection, and the number of roads in the intersection. The central computer of the traffic signal coordination control system conducts offline or online optimization design according to the distribution of traffic demand and user requirements,...
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The invention relates to a traffic signal coordinated control device with a plurality of intersections, in which the system model 'green wavestrip'is not straight line but broken line and the ratio between inner trajectory slope of intersection and trajectory slope on the road equals coefficient of dampling of the said intersection. The device is provided to treat the design speed of the vehicles on the ground and inside the crossing in a same way. The device consists of a device of variable proportions, in which the device uses different scales to different components with a same length of oriented path: the ground lengths among crossings keep normal proportion of true size, but the measurement of the ground design length of gross ditch inside the crossing enlarges a multiple which is homologous to the coefficient of damping of crossing compared with measurement of the ground actual length of gross ditch inside the crossing, then drafts according to a normal proportion.
Description
technical field [0001] This patent application relates to a traffic signal coordination control system for multiple intersections, which is composed of a central computer and an almost synchronous standby intersection signal control device with almost synchronized clocks. The fixed spatial geometric parameters such as the length of the road surface and the number of road canals in the intersection are determined by the central computer of the traffic signal coordination control system according to the distribution of traffic demand and user requirements, including the speed range of the desired vehicle driving, and the participation of the intersection in coordination. The minimum green light time and the maximum green light time of the controlled phase are optimized offline or online, or the parameters designed offline are selected and determined, and the uniform period, phase difference, green signal ratio and other parameters of each intersection are output and given to each...
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IPC IPC(8): G08G1/07
Inventor 王大海
Owner 王大海